Bis-HPPP

Bis-HPPP
Names
	Preferred IUPAC name 3,3′-[Propane-2,2-diylbis(4,1-phenyleneoxy)]di(propane-1,2-diol)
	Other names BADGE·2H2O
Identifiers
CAS Number	5581-32-8;
3D model (JSmol)	Interactive image;
ChemSpider	99341 ;
ECHA InfoCard	100.024.524
PubChem CID	110678;
UNII	S5K2510L3D ;
CompTox Dashboard (EPA)	DTXSID10971212 ;
	InChI InChI=1S/C21H28O6/c1-21(2,15-3-7-19(8-4-15)26-13-17(24)11-22)16-5-9-20(10-6-16)27-14-18(25)12-23/h3-10,17-18,22-25H,11-14H2,1-2H3 Key: NISVZEWKUNUGQQ-UHFFFAOYSA-N ; InChI=1/C21H28O6/c1-21(2,15-3-7-19(8-4-15)26-13-17(24)11-22)16-5-9-20(10-6-16)27-14-18(25)12-23/h3-10,17-18,22-25H,11-14H2,1-2H3 Key: NISVZEWKUNUGQQ-UHFFFAOYAT;
	SMILES OCC(O)COc1ccc(cc1)C(C)(C)c2ccc(OCC(O)CO)cc2;
Properties
Chemical formula	C21H28O6
Molar mass	376.449 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Bis-HPPP (2,2-bis[4(2,3-hydroxypropoxy)phenyl]propane) is an organic compound that is formed when the dental composite material bis-GMA is degraded by salivary esterases. It is also called BADGE·2H₂O in reference to it being the hydrolyzed form of BADGE, which is used in the formation of epoxy resins. Structurally, it is a di-ether of bisphenol A.